/*
 * Tencent is pleased to support the open source community by making BK-CI 蓝鲸持续集成平台 available.
 *
 * Copyright (C) 2021 THL A29 Limited, a Tencent company.  All rights reserved.
 *
 * BK-CI 蓝鲸持续集成平台 is licensed under the MIT license.
 *
 * A copy of the MIT License is included in this file.
 *
 *
 * Terms of the MIT License:
 * ---------------------------------------------------
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

package com.tencent.bkrepo.common.api.sensitive

import java.lang.reflect.Field
import java.lang.reflect.Modifier

/**
 * 数据脱敏工具类
 */
object DesensitizedUtils {

    /**
     * 返回对象[obj]脱敏后的字符串
     */
    fun toString(obj: Any): String {
        val fields = mutableListOf<String>()
        var clazz: Class<in Any>? = obj.javaClass
        while (clazz != null) {
            for (field in clazz.declaredFields.filterNot { Modifier.isStatic(it.modifiers) }) {
                fields.add("${field.name}=" + desensitized(field, obj))
            }
            clazz = clazz.superclass
        }
        return "${obj.javaClass.simpleName}=[${fields.joinToString(", ")}]"
    }

    private fun desensitized(field: Field, obj: Any): String? {
        field.isAccessible = true
        val value = field.get(obj)?.toString() ?: return null
        val annotation = field.getAnnotation(Sensitive::class.java)
        return if (annotation != null && field.type == String::class.java) {
            annotation.type.desensitized(value)
        } else value
    }
}
